DNS
THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.2

n-k.su · 37.252.16.229:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
emailAddress=webmaster@n-k.su CN=n-k.su
Issuer
emailAddress=webmaster@n-k.su CN=n-k.su
Valid from
2014-10-02T22:23:55+00:00
Expires
2024-09-29T22:23:55+00:00
Days remaining
-747
Serial (hex)
FA6C0F382946F8C9
Signature
RSA-SHA1
Public key
RSA 1024

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

FC:DF:73:20:3D:9A:4E:57:3C:DC:A8:8D:A1:2E:02:CA:97:8C:35:F7:81:6F:0A:42:E3:4E:C0:3D:B2:9F:59:43
Certificate extensions & PEM
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES128-GCM-SHA256 · Checked 2026-10-16T07:04:02+00:00

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

View certificate JSON

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